DE2713841A1 - AEROSOL PRODUCT - Google Patents

Description

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1 BERLIN 33 8MUNCHENtO

Auguste-Vikloria-SlrafJe85 _n _ Dl IO OU I / C Ji DADTMCD Pienienauerstraoe 2 Pai.-Anw. Dr. Ing. Ruschke L ". T \ UOO Π l \ C Ot rrtRMNCR Pal-An». Dipt Ing.

Pal -Am .. Dipl.-Ιηβ- PATFMTiMWAI TF ^{Hans E Rutd% k} '

Olaf Ruschke RAI CIN IAINWftLI C «0324

Telephone: 030 / · »2 * BERLIN - MÜNCHEN TeIe ^ O ₈₉ Z ₉₈₇₂₅₈ T.legramm-Ad, ..,.:. Telegram address: Quadrature B * MÜn 'ί * Quadrature Munich TELEX: 1837M TELEX: 522767

Tiie Gillette Cotnpan.y, Boston, Massachusetts, V.St. A,

Aerosol product

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The invention relates to aqueous, in cosmetic compositions, in particular for the formulation of to be put under pressure lathering systems, such as shaving foams, suitable mixtures of surfactants with a high and low surfactant content HLB value.

Much of the previous effort focused on commercialization of pressurized packaging of consumer products accounted for the formulation of surface-active agents for the manufacture of products that can be dispensed in the form of aesthetically suitable foams. A wide variety of soap and non-soap surfactant materials have been studied and for numerous applications recommended, but it was soon recognized that the most suitable foams for most applications, in particular for wet shaving products, those with a dense creamy persistent foam, i.e. foams with small bubbles and thick walls. Although such foams can be formed from numerous classes of surfactants only those based on relatively highly concentrated soaps of long-chain fatty acids showed the desired foam stability.

These traditional aerosol shaving foams are different from foams made by whipping air into solutions of synthetic

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table detergents such as sodium lauryl sulfate have been in several ways. The density of aerosol shaving foams on the basis of soaps of long-chain fatty acids is advantageously at least 0.07 g / ml and can also make up 0.15 g / ml. The density of most non-aerosol detergent foams on the other hand, ranges from about 0.2 g / ml downwards. A second different characteristic is the size of the bladder. Traditional shaving foams have bubbles that range primarily from 10 to 100 microns in size. With foams off Surfactants, such as those made from sodium lauryl sulfate, the mean particle size is at least one or more two orders of magnitude larger and the size distribution a lot wider.

A third distinguishing feature is the thickness of the bladder wall. Soap-based shaving foams are relatively thick Bladder walls, on the order of several microns, while detergent foams Have walls that are at least an order of magnitude thinner and often so thin that they have interference colors be able to show. The fourth difference is the foam body or the foam thickness. The strength, i.e. the resistance to Deformation of a foam based on a soap is much larger than that of detergent foams. A fifth The difference is in terms of stability. Soap-based shaving foams are very stable and last a long time

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have a small bubble size and show very low drying rates. In contrast, detergent foams have low drying rates only at very low rates Dense and small bladder wall thicknesses.

A number of the above factors are related to each other: A high foam density is a necessary consequence of thick bubble walls and small bubble size; a large foam thickness is related to a small bubble size. Although similar high density aerosol foams from other grades are more surfactant Means that most such foams are weak and unstable and quickly become thin-walled Foaming with large bubbles and low density.

It has now been found that, by suitable choice, more surface-active substances Agents as described below, foamable aqueous agents can be formed, any of which are desired Properties of conventional soap-based agents but contain little or no soap.

One molecule of a surfactant is partially hydrophilic and partly lipophilic. The balance between these two parts exerts a major influence on the surfactants Properties of the molecule. A number can be given, which roughly represents the degree of water and Pettfreunalichkeit (the HLB value) defined; higher numbers are

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mainly given hydrophilic molecules, and lower numbers are given in mainly lipophilic molecules. The HLB values can be determined experimentally ^ W.C. Griffin, JSCC 5_> 249 (1954) _ /. It can be assumed that everyone used here HLB values are approximate values of experimental determinations and with changes in the composition of a given surfactant can vary slightly.

Surprisingly, it has been found that aqueous mixtures of surface-active agents present in major proportions with an HLB value of 0.5 to 10.0 along with in smaller proportions present surfactants with an HLB value above 8.5 within certain critical levels for formation of foams with surprisingly high foam viscosities and stabilities can be used. Compound means, exhibiting this behavior are within a wide range of low surfactant levels HLB to high HLB surfactant, which is from 4: 1 to 1000: 1 by weight, and preferably ranges from 8: 1 to 400: 1. In all cases the HLB of the high HLB surfactant must be at least 3.0 units greater than the HLB of the low HLB surfactant.

One of the advantages of the means of the invention is that thick, dense, stable foams can be obtained from

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nen that contain substantially lower total concentrations of surfactants, as they verv.'endet according to the prior art wurden.Es is possible only 1.5 wt -.% of the surfactant with low HLB to be used, provided that a the correct proportion of the high HLB surfactant is used. On the other hand, it is possible to use higher concentrations of the surfactant with low HLB, to up to 25.0 wt -% to use, and yet be observed the unexpected properties described herein.. It is preferred, however, to use much lower concentrations of low HLB surfactant, with a preferred range of 2.0 to 50 #. The concentration of high HLB surfactant to be employed in the formulation of compositions of the invention is always below the amount of low HLB surfactant used and can range from 0.0015 to 4.0% by weight range, with a preferred range being $ 0.01 to $ 0.7.

The foregoing are the general relative proportions to be employed by the types of surfactants to be used however, the optimal ratio for a given combination of surfactants depends on the idiosyncrasy of the specific agent and can be obtained by measuring the foam viscosity of a number of agents with varying proportions of surface-active miitielii / are determined.

The foam viscosity measurements described here were made using a Brookfield RVT viscometer with a Helipath stand and ^M T ^W spindle number A. A container was made. By attaching a plastic cylinder 3.3 cm long and 6.9 cm inside diameter ^{to the} wide end of a plastic funnel. The container was filled by connecting the stem of the funnel on the valve train of the aerosol container with the agent to be tested to a short tube of sufficient diameter so that the structure of the foam was not affected. After dispensing the foam, excess foam at the top of the funnel was removed and the ¹¹ T "spindle sunk into the foam until the crosspiece was just covered. The viscometer, set at 5 revolutions per minute, was turned on The first 7 readings were taken, an average value was obtained and the value for the initial foam viscosity was determined in cP. 5 minutes after the foam was dispensed, the procedure was repeated and it a viscosity value was determined for the 5-minute foam. The mean of these two values was the stated foam viscosity *

Attempt I.

Using the method described above to measure the Foam viscosity has been a number of typical aerosol foaming agents with different proportions of polyoxyethylene (2) -

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- 1 night -

stearyl ether (HLR value = 4.9) to triethanolamine stearate (HLB value = 11.7), obtaining the following result became.

When the concentration of polyoxyethylene (2) stearyl ether was kept constant at 2.0 wt .- #, the foam viscosity remained essentially constant at about 8000 cP within a ratio range of 2000: 1 to 200: 1. Although the strength of this When foams had a minimum suitability from the standpoint of viscosity, the stability of the foams was unsuitable. At a At a ratio of about 200: 1, the foam viscosity surprisingly started to a maximum of about 19,000 cP at one Ratio of surface active agents to increase by about 8: 1. As the ratio was further reduced, the viscosity unexpectedly decreased to a minimum of about 11,500 cP at a surfactant ratio of approximately 0.8: 1. Within the ratio range of about From 26.5: 1 to 4.4: 1, all foams formed had a viscosity of at least 16,000 cP. In addition, the foams showed inside this area a stability that was comparable to that which was previously only achieved with means, which contained significantly higher amounts of surfactants based on fatty acid soaps.

Experiment II

A study using a number of means, all

len (2) stearylate

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3 0ew .- # polyoxyethylene (2jsteary ^ equivalent (HLB value = 4.9) and

Containing varying concentrations of sodium lauryl sulfate (HLB = 40, θ) resulted in a similar unexpected increase in foam viscosity at ratios of about 2,000: 1 to 50: 1. All foam viscosities were at ratios of 2 ¹ I (JjJL to 55: 1 over 16,000 cP.

It was also found that the approximate optimal ratio for any particular pair of surfactants without extensive foam viscosity measurements of typical aerosol formulations by simply determining the properties, such as mass viscosity, surface tension or changes the crystal structure of a range of aqueous compositions with varying levels of surfactants can be determined. Such studies have the existence of an unexpected maximum value for the viscosity of the mass within the proportion range of low HLB surfactant to high HLB surfactant, in which the foam distributed as aerosol foam shows surprising foam viscosity properties. E.g. the Agents which have been investigated as aerosol foams in the above Experiment I in the form of aqueous agents, a maximum value for the viscosity of the mass at the 15: 1 ratio of surfactant Low HLB agent to surfactant Medium with a high HLB value. In the same way, the agents investigated in Experiment II show a maximum value for the viscosity the mass at a ratio of about 200: 1.

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Another advantage of practicing the invention is that dense and highly viscous aerosol bubbles are formed without the disadvantages associated with the traditional soap-based products. A decrease or a total Absence of fatty acid soaps in products is suitable for people who have a skin sensitivity to such soaps to have. The tolerance to hard water and the washability from the razor blade are also improved. Appropriate choice of surfactants, as described more fully below, allows formation non-alkaline agents with a pH close to that of human skin, resulting in minimal disruption of the natural pH balance of the skin. It is now also possible that cationic materials, such as long-chain Quaternary ammonium compounds, are contained in the agents and thereby the skin the feeling of a smooth state is awarded after washing off the foam.

With reference to the foregoing, it is noted it has been suggested that the ionic nature of the surfactants used in the practice of the invention is not critical is. Hence it is possible. Means to formulate the surprising Viscosity properties show by using low HLB and high HLB surfactants the same ion class or different ion classes can be used together. The table below shows examples

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indicated for specific surfactants that are used in Implementation of the invention can be used. However, the invention described here is not limited to these examples.

Table I Low HLB Surfactants (0.5 to 10, θ)

Anionic

Cationic

Nonionic

Alkali, ammonium, amine and alkanolamine (with 2 to 3 carbon atoms) alkanoyl lactylates, in which aie alkanoyl group of 12 to Io carbon atoms Has·

Bis- (2-hyaro.x./äUi,yl) alkylamines in which the alkyl group Has 12 to 18 carbon atoms.

Ethoxylated primary alkylamines in which the alkyl group Has 12 to 18 carbon atoms and the degree of ethoxylation ranges from 1 to 2 moles.

Ethoxylated, saturated and unsaturated C, p- bis Cj ^ fatty alcohols with 1 to 4 moles of ethoxylation.

Ethoxylated Cy to C, "- alkylphenols with 1 to 5 Moles of ethoxylation.

Saturated and unsaturated Cg to C-, o-N, N-dimethyl fatty acid amides.

Ethoxylated C ₁₂ to C, g fatty acids with 1 to 5 mol ethoxylation.

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- 14 Glycerides derived from vegetable oils.

Ethoxylated glycerides derived from vegetable oils.

Glyceryl esters from C, p to C, n fatty acids. C-, p- to C, u-alkyl monoesters of ethylene glycol, propylene glycol and diethylene glycol.

By converting sorbitol with saturated or unsaturated C, "- to C, η-fatty acids formed esters and the like Esters with up to 5 moles of ethoxylation.

Through implementation of polyethylene glycol (100 to I500) with saturated or unsaturated C, p- to C, o-fatty acids esters formed.

Amphoteric imidazole derivatives of the formula

CH ₀

N CH ₂

CH ₂ COOM

OH
where R = C, ^ - to C-, n-alkyl and

M = Na, K, NH ₁₊ .

The preferred surface active agents having a low HLB value for use in the formulation of compositions of the invention are the ethoxylated saturated or unsaturated C, ₂ ~ to

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C ₁ Q fatty alcohols with 1 to 4 moles of ethoxylation, especially the cetyl and stearyl alcohols with 2 moles of ethoxylation.

High HLB (8.5 to 80.0) surfactants. Anionic C1 to C10 alkyl sarcosines.

Alcohol sulfates, including the NH ₂ .-, Mg, Na, K, trlethanolamine, diethanolamine and monoethanolamine salts of monoalcohols with 10 to 18 carbon atoms, and the ethoxylated derivatives thereof with 1 to 200 moles of ethoxylation.

Alkyl aryl sulfonates, including the NH ₂ , Ca, Na, K, triethanolamine and isopropanolamine salts, wherein the aryl group is benzene, cumene, toluene or xylene and the alkyl group has 1 to 13 carbon atoms.

C-, Q- to Cjo-alkylamine and amide sulfonates. Benzene, cumene, toluene and xylene sulfonates.

Ethoxylated alkylphenols with alkyl groups with 8 to 12 carbon atoms and with 4 to 200 moles of ethoxylation.

Diphenylsulfonates, including dibutylphenylphenol sodium disulfonate, and C ₁₀ - to C-jp-diphenyl ether disulfonates.

Fatty acid soaps from the Li, Na, K, Monoethanolamine, Diethanolamine, triethanolamine and isopropyl

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nolamine salts of fatty acids containing 10 to 24 carbon atoms.

Sulphated and sulphonated esters, including those with the formula R, COpR ", where R is an alkyl group of 9 to 17 carbon atoms and Rp is an alkyl group of 1 to 3 carbon atoms.

Naphthalene sulfonates, including the Na, K, NHr salts of monoalkyl and dialkyl derivatives in which the alkyl groups have 1 to 10 carbon atoms.

Sulphated and sulphonated oils from the group consisting of olive oil, soybean oil, peanut oil, tallow, castor oil, hydrogenated It is made up of castor oil, sperm oil, linseed oil, safflower oil, neat fat and coconut oil.

Sulphated and sulphonated oils containing fatty acids with 10 to 18 carbon atoms.

Olein sulfates and sulfonates having 10 to 18 carbon atoms.

Petroleum sulfonates containing 10 to 18 carbon atoms.

Ether sulfates, including the NH ^ -, Na-, K-, triethanolamine, Diethanolamine and monoethanolamine salts of compounds having alkyl groups of 10 to 18 carbon atoms.

Sulphosuccinates, including the sodium, monoethanolamine and isopropanolamine salts of straight chain

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or branched derivatives having 4 to 18 carbon atoms.

Taurates, including the sodium salts of taurates with 10 to 18 carbon atoms, N-methyl taurates having 10 to 18 carbon atoms and N-cyclohexyl taurate having 10 to 18 carbon atoms.

Amide sulfates containing 10 to 18 carbon atoms.

Cationic primary C ₁₀ - to C, o-fatty amines and the ethoxylated derivatives thereof with 5 to 20 moles of ethoxylation.

N - X, where X is Cl or Br, _R / R ₁ and R ₂ CH, or

are, where η = 1 to 20, to C-.O and

C ₁ to C ₁₈ or

is.

dl isoquinolinium bromide and alkylpyrfnium bromide and

-chlorides with 10 to 18 carbon atoms in the alkyl chain.

Amine oxides, including R (CH ^) ₂ N ^ 0, where R

an alkyl group having 10 to 18 carbon atoms or Is morpholine.

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Nonionic

Ethoxylated monohydric and polyhydric phenols with 10 to 18 carbon atoms and more than 5 mol ethoxylation.

Ethoxylated alkylphenols with 6 to 12 carbon atoms in the alkyl group and 5 to 200 moles of ethoxy-1ation.

Ethoxylated fatty acids with 10 to 18 carbon atoms and 5 to 200 mol Ä'thoxy lie tion.

Patty acid alkanolamides with the formula R.

wherein

= C ₅ to C ₁₇ and = C ₅ to C ₁₇ , Rp

= C ₅ to C ₁ ,

= R, = CH, or

₂ = H and

, = CH ₂ CH ₂ OH or

CH ₂ CHOHCH, or = R = CH ₂ CH ₂ OH

Amphoterics

and the ethoxylated derivatives thereof with 5 to
200 moles of ethoxylation.

Ethoxylated lanolin derivatives.

Ethoxylated sorbitans, including the fatty acid esters of sorbitol with 10 to 18 carbon atoms and ethoxylated with 10 to 200 moles of ethylene oxide.

Imidazole derivatives with the formulas

CH,

N-

R4 R ₂

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₁ OM

COOM

CH,

N CH ₂

R _ c N R, O R, COOM

/ ^
^R 4 ^R 2 ^C00M

wherein R is a hydrocarbon group having 4 to 18 carbon atoms,
R ,, R ₂ and R-, are selected from the group consisting of

a) aliphatic hydrocarbon groups with 1 to 4 carbon atoms,

b) hydroxy-substituted aliphatic hydrocarbon groups with 1 to 4 carbon atoms,

c) aliphatic hydrocarbon groups with a single Ether bond and with 2 to 4 carbon atoms,

d) hydroxy-substituted aliphatic hydrocarbon groups with a single ether bond and with 2 to 4 carbon atoms,

e) aliphatic keto groups which contain only a single keto bond and otherwise hydrocarbon groups are with 2 to 4 carbon atoms,

f) aliphatic keto groups that only have a single keto bond contain and otherwise hydroxy-substituted hydrocarbon groups with 2 to 4 carbon atoms are,

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Hk is chosen from the group that consists of

a) a hydroxyl group and

b) a group -OSO ₅ (CH ₂ CHO) _n R ^, in which

K ₁ . is a hydrocarbon group with 8 to 18 carbon atoms and η is an integer from 0 to 4 inclusive,
and

M is an alkali metal.

+
Betaines of the formula R 1 R ₂ FUNCH ₂ CO _{2 , in which R 1 and} R p are methyl groups, R 1 is an alkyl group having 10 to 18 carbon atoms.

The preferred high HLB surfactants for use in formulating the compositions of the invention

Fatty soaps made from Li, Na, K, NHk, monoethanolamine, diethanolamine, triethanolamine and isopropanolamine salts of fatty acids with 10 to 24 carbon atoms, in particular Triethanolamine stearate,

Alcohol sulfates, including the NH ^, Mg, Na, K, triethanolamine, diethanolamine and monoethanolamine salts of monoalcohols with 10 to 18 carbon atoms, and the ethoxylated derivatives thereof with 1 to 200 mol Ä'thoxylferung, especially sodium lauryl sulfate, and quaternary derivatives of fatty amines with 10 to 18 carbon atoms, in particular stearyldimethylbenzylammonium chloride.

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Suitable aerosol propellants for use in transit the founding is any of the usual liquefied propellant gases, including aliphatic hydrocarbons and halogenated derivatives thereof, alone or in admixture with other propellants and generally in vapor pressures of 0.7 to 7 atü at room temperature. To typical propellants, which in proportions from 1 to 15% by weight of the agent can be used Propane, butane, isobutane and halogenated aliphatic hydrocarbon derivatives, such as.

Trichloromonofluoromethane,

Dichlorofluoromethane,

Monochlorotrifluoromethane,

Carbon tetrafluoride,

Dichloromonofluoromethane,

Monochlordi fluorine than,

Monoborotrif luorinethane,

Dibromodifluoromethane.

Trifluoromethane,

Tetrachlorodifluoroethane,

Trichlorotrifluoroethane,

Dichlorotetrafluoroethane,

Dibromomonochlorotrifluoroethane,

Dibromotetrafluoroethane,

Monochloropentafluoroethane,

Ethylidene fluoride,

1,1,1-difluorochloroethane,

Difluoi'ethane.

Mixtures of propane and isobutane are preferred, with the total amount of blowing agent present in the range of 2.5 to 6.0 wt .- #, and preferably from 3.0 to ^, 5 wt -.% Is.

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ORIGINAL INSPECTED

The preparation of the compositions of the invention requires only the usual measures which are usually used by the person skilled in the art of aerosol formulation. In the various examples given below, all ingredients are combined, with the exception of the blowing agent in a beaker and heated with stirring at J ^ to 8 ^ ⁰ C, until all the solid components melted. The beaker is then removed from the heat source and cooled to room temperature by immersion in an ice water bath with continued stirring. The homogeneous mass obtained is then filled into a conventional aerosol container together with a suitable propellant in a weight ratio of 96: 4.

The following specific examples that have been carried out using ¹ of the production method Introducing described, are used to ¹ v / Eiteren explanation of the invention, which is not limited to these examples.

example 1

Component wt. -%

Polyoxyethylene (2) cetyl ether (HLB value = 5.3) 3.00

Sodium lauryl sulfate (HLB value 4o, ü) 0.01

HpO q.s. to 100

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ORIGINAL INSPECTED

Example 2

Component wt. -%

Polyoxyethylene (2) stearyl ether (HLB value = 4.9) 3.00

Lauric acid diethanolamide (HLR value = 11.5) 0.10

H ₂ O qs to

Example 3 Part of weight ff

Polyoxyethylene (2) cetyl ether (HLB value = 5.3) 3.00

Sodium cocomethyl taurate (HLB-Wt? Rt = 19, θ) 0.007

HpO q.s. until

Example 4

Ingredient wt -.%

Polyoxyethylene (2) stearyl ether (HLB value = 4.9) 2.00

Triethanolamine stearate (HLB = 11.7) 0.25

H ₂ O qs to

component Weight -%

Polyoxyethylene (2) stearyl ether (HLB value = 4.9) 4.00

Polyoxyethylene ( 2) quart em. ammonium salt of

Coconut fatty acids (HLB value = 13.5) 0.15

H ₂ O qs to

Example 6 component
Polyoxyethylene (2) stearyl ether (HLB value = 4.9) Kükossäui eamidoalkyl betaine (HLB value - over 12, θ) (Tegobetaine C, Wilson Pharm. A Chern. Corp.)

Weight -P 3, O ₁ , 50 100 , 20 q.s. until

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Example 7 Ingredient wt .- #

Polyoxyethylene (2) cetyl ether (HLB value = 5.3) 2.00

Polyoxyethylene (2) stearyl ether (HLB value = 4.9) 2.00

Triethanolamine stearate soap (HLB = 11.7) 0.70

H ₂ O qs to

Example 8 Ingredient wt .- ^

Sodium stearoyl lactylate (HLB value = 5.0 to 7.0) 5.00 Polyoxyethylene (10) stearyl ether (HLB value = 12.4) 1.00

H ₂ O qs to

Example 9 Ingredient wt .- $

Sodium stearoyl lactylate (HLB = 5.0 to 7.0) 5.00

Sodium Lauryl Sulphate (HLB = 40.0) 0.15

H ₂ O qs to

Example 10 component

Bis (2-hydroxyethyl) tallowamine (HLB value = 4.5)
Sodium lauryl sulfate (HLB value = 40, θ)
H ₂ O

Example 11

Component wt. -%

Bis- (2-hydroxyethyl) tallowamine (HLB value = 4.5) 5.00

Cetyltrimethylammonium chloride (HLB value = 16, θ) 0.25

H ₂ O qs to

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Wt% , 00 5 , 25 0 .until 100 q.s

Example 12 Ingredient wt .- #

Stearic acid monocarboxyimidazoline derivative

(HLB value = below 10.0) (Miranol DM, Miranol

Chemical Co.) 3.00

Stearyltrimethylammonium chloride (HLB value = 1h, θ) 0.50

H ₂ O qs to 100

Each of the examples given above is made from an aerosol container distributed as a foam suitable for use as a wet shave product.

Although in the description of the usefulness of the invention has been highlighted in the formulation of pressurized Rasierschaumprodukten, the technology is also applicable to other personal care products or chemical products, if such a product thick one in shape, stable foam to be dealt. Such areas of application for the products include hair and skin treatment products, such as hair care products, shampoos, hair dyes and hair conditioning agents, skin softeners or skin cleansers, and also household products.

It has been found that the surprising viscosity property of the mass of the compositions of the invention is the formulation viscous, gel-like products that are suitable for non-pressurized packaging. These funds require

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the significantly lower concentrations than the conventional cosmetic formulations when these have similar viscosities should show.

Example I ^ - skin lotion constituent wt . %

Polyoxyethylene (2) stearyl ether (HLB value = 4.9) 3.00 Lauric acid diethanolamide (HLB value = 11.5) 0.20

Beeswax 1.00

H ₀ O qs to

The above ingredients are mixed together with stirring at 75 to 85 ° C until all solid substances have melted are, and then the mixture is stirring continuously cooled to room temperature by immersion in an ice water bath. The mass obtained is a typical hand lotion.

Example 14

Without brush to be applied shaving cream Ingredient Weight -.%

Polyoxyethylene (2) stearyl ether (HLB value = 4.9) 8.00 sodium lauryl sulfate (HLB value = 40.0) 0.02

Peanut oil 2.00

Ethylene glycol monostearate 1.00

H ₂ O qs to

The above constituents are mixed at 75 to 85 ^° C. with stirring

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mixed together until all of the ingredients have melted and are distributed. The mixture is then cooled to room temperature with continued stirring. The product obtained is of medium thickness Cream with a smooth, shiny, white-opaque appearance, even if it is in the form of a thick layer on the skin is distributed.

Dr V / G. /

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Claims (4)

Claims (] Λ Aerosol product suitable for cosmetic use on skin and hair, consisting of a valve-controlled pressure vessel containing a mixture consisting of 1 to 15 $ of a liquefied propellant gas and an aqueous foamable formulation of surface-active agent, characterized in that the Surfactant formulation contains a first surfactant having an HLB value of 0.5 to 10.0 in a major proportion and a second surfactant having an HLB value above 8.5 in a minor proportion, the HLB value of the second surfactant is at least J> 0 units greater than the HLB of the first surfactant and the ratio of the first surfactant to the second surfactant ranges from 4: 1 to 1000: 1 by weight. 2. Aerosol product according to claim 1, characterized in that the ratio of the first surfactant to the second surfactant ranges from 8: 1 to 400: 1. 3. Aerosol product according to claim 1, characterized in that the first surfactant is 1.5 to 25.0 wt .- ^ and the second surfactant is 0.0015 to 4.0 wt .- #. 709841/0810 ORIGINAL INSPECTED 4. Aerosol product according to one of the preceding claims, characterized in that the first surface-active agent ethoxylated saturated or unsaturated C _,? - Is to C, g-fatty alcohol with 1 to 4 mol Ä'thoxylierung and the second surface-active agent from a lithium, sodium, potassium, ammonium, monoethanolamine, diethanolamine, triethanolamine or isopropanolamine salt of a fatty acid with 10 to 24 carbon atoms, an ammonium, magnesium, sodium, potassium, triethanolamine, diethanolamine or monoethanolamine salt of a monoalcohol with 10 to 18 carbon atoms in the alcohol group or a quaternary compound of a fatty amine with 10 to 18 carbon atoms. 709841/081 Q